Оцените скрипт, начал писать еще когда про логические операторы не знал, может что поправить?
#!/bin/bash
NODIR='is not a directory!'
if [ -z $1 ]
then
echo 'Enter intut and output directory!'
echo 'Syntax:'
echo -e "\t ${0##/} <Input path/> <Output path/> <options>"
echo 'Options:'
echo "-hw -- Include info about current hardvare and kernel modules for it, don't use it for restoring configs!"
echo 'To save all CPU flags backup directory must be mount with execution rights'
echo ' '
echo "From first argument ${0##/} read config files and instert them to output directory"
echo 'Every absolute or relative path must end with slash "/"'
echo 'For instance:'
echo -e "\t ${0##/} / docs/bacupfolder/ -hw"
echo -e "\t ${0##/} docs/backupfolder/ /"
echo -e "\t ${0##/} <path to root/> <path to backup folder/> <flags> (Save backup)"
echo -e "\t ${0##/} <path to backup folder/> <path to root/> (Restore configs from backup)"
echo " "
echo "This script return 0 if work finished, 1 if wrong quantity of arguments, and 2 if not existing folders given."
elif [ $# -gt 3 ]
then
if [ $# -eq 1 ]
then
echo 'Too few arguments! Two expected'
else
echo "$# is too many arguments! Enter input and otput folder"
fi
exit 1
elif [ -d $1 ]
then
if [ -d $2 ]
then
echo -e "\t Saving configs: \n"

USE="etc/portage/package.use"
MASK="etc/portage/package.mask"
VAR="var/lib/portage"
XORG="etc/X11/xorg.conf.d"
LINUX=`cd ${1}usr/src/linux- ; pwd`

mkdir -pv ${2}${USE}
mkdir -pv ${2}${MASK}
mkdir -pv ${2%/}${LINUX}
mkdir -pv ${2}${VAR}
mkdir -pv ${2}etc/portage/repos.conf
mkdir -pv ${2}${XORG}

cp -v "${1}etc/portage/make.conf" ${2}etc/portage/
cp -v ${1}${USE}/ ${2}${USE}/
cp -v ${1}${MASK}/ ${2}${MASK}/
cp -v ${1}${VAR}/world ${2}${VAR}/
cp -v ${1}${XORG}/20-intel.conf ${2}${XORG}/
cp -v ${1}etc/portage/repos.conf/ ${2}etc/portage/repos.conf/

#Save cofing files in /etc/
for CONF in rc.conf fstab DIR_COLORS asound.conf
do
cp -v ${1}etc/${CONF} ${2}etc/${CONF}
done

#Saving hardware files (save info from current system)
if [ "$3" = "-hw" ]
then
echo ' '
echo -e "\t Saving hardware info: \n"
mkdir -pv ${2}proc
for FILE in cpuinfo fb filesystems devices misc modules partitions cmdline mtrr
do
cp -v ${1}proc/${FILE} ${2}proc/${FILE}
done
if [ $UID -ne 0 ]
then
echo -e "\t To execute lspci you should have root acces!"
else
lspci -vv > ${2}lspci
#insert your '-march=' flag(s) to this loop
for MARCH in native
do
touch ${2}${MARCH}.cc ${2}march.cc
cd ${2}; gcc -fverbose-asm "-march=${MARCH}" ${MARCH}.cc -S
cd ../
done
rm -v ${2}.cc
#Comment next two lines if you test more than two (or only one) -march flags
#diff ${2}.s --side-by-side > ${2}march
#rm -v ${2}*.s
fi
dmesg > ${2}dmesg
lsmod > ${2}lsmod
blkid > ${2}blkid
emerge --info > ${2}emerge
ifconfig -a > ${2}ifconfig
ip addr > ${2}ip
env > ${2}env
echo -e "\t \n Configs Saved"
exit 0
else
echo -e "\t Backup finished \n"
fi
exit 0
else
echo "$2 ${NODIR}"
fi
exit 2
else
echo "$1 ${NODIR}"
exit 2
fi